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Diffstat (limited to 'malloc')
-rw-r--r--malloc/malloc.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 55e2cbc0cd..8cc9e454dc 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -4135,8 +4135,14 @@ _int_free(mstate av, Void_t* mem)
        allocator never wrapps around at the end of the address space.
        Therefore we can exclude some size values which might appear
        here by accident or by "design" from some intruder.  */
-    if ((uintptr_t) p > (uintptr_t) -size)
-      return;
+    if (__builtin_expect ((uintptr_t) p > (uintptr_t) -size, 0))
+      {
+	if (check_action & 1)
+	  fprintf (stderr, "free(): invalid pointer %p!\n", mem);
+	if (check_action & 2)
+	  abort ();
+	return;
+      }
 
     check_inuse_chunk(av, p);